Yes, we find it very valuable to be able to actually demonstrate product, and don't think we could have grown to the size we are today without some kind of customer space.
We have a residential showroom and a commercial conference room. The conference room has all the automation as the showroom, and we can review plans on the large display. The conference room may actually be the best use of our capital.

I would recommend starting small. Just make it clean and work perfectly.